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Reference type: Journal
Authors: Cui JY, Zhou ZP, Xie AT, Liu SW, Wang QQ, Wu YL, Yan YS, Li CX
Article Title: Facile synthesis of degradable CA/CS imprinted membrane by hydrolysis polymerization for effective separation and recovery of Li+.
Publication date: 2019
Journal: Carbohydrate Polymers
Volume: 205
Page numbers: 492-499.
DOI: 10.1016/j.carbpol.2018.10.094
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0144861718312943

Abstract: Lithium resources are attractive for different applications because of their specific properties. Therefore, it is more significant to find a cost-effective and environment-friendly method to selective adsorption and recovery of Li+. In this work, a renewable and easy degradable CA/CS hybrid membrane was modified with polydopamine as adhesion layer to anchored TiO2. The simple imprinting process could be realized by hydrolysis polymerization. The adsorption process followed Langmuir isotherm model and pseudo-second-order kinetic equation were researched in detail. The results displayed the maximum adsorption capacity is 20.08 mg g-1 for Li+. The selectivity factors of Li+ to Na+, K+, Mg2+ and Ca2+ are 1.78, 2.43, 2.60 and 3.61, respectively, which mainly attributed to imprinting effect. The LIICMs also exhibited the superior reusability and durability. Thus, the LIICMs provide a powerful tool for selective separation and recovery of Li+ from mixed solutions
Template and target information: lithiom ion, Li(I)
Author keywords: Degradable hybrid membrane, Environment-friendly method, Ion imprinted, permselectivity, Lithium

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